HSEARCH-4331 Make DocumentIdDefaultBridgeBaseIT#indexing work even wh…

…en there are multiple values that are equal

This can happen with JavaUtilDatePropertyTypeDescriptor in particular:
we test different dates representing the same instant (thus equal
according to equals()) but with a different type (java.util.Date and
java.sql.Date).

integrationtest/mapper/pojo-base/src/test/java/org/hibernate/search/integrationtest/mapper/pojo/mapping/definition/DocumentIdDefaultBridgeBaseIT.java

@@ -94,17 +94,14 @@ public void setup() {
 
 	@Test
 	public void indexing() {
-		try ( SearchSession session = mapping.createSession() ) {
-			for ( I entityIdentifierValue : typeDescriptor.values().entityModelValues ) {
+		Iterator<String> documentIdentifierIterator = typeDescriptor.values().documentIdentifierValues.iterator();
+		for ( I entityIdentifierValue : typeDescriptor.values().entityModelValues ) {
+			try ( SearchSession session = mapping.createSession() ) {
 				Object entity = expectations.instantiateTypeWithIdentifierBridge1( entityIdentifierValue );
 				session.indexingPlan().add( entity );
-			}
 
-			BackendMock.DocumentWorkCallListContext expectationSetter = backendMock.expectWorks(
-					DefaultIdentifierBridgeExpectations.TYPE_WITH_IDENTIFIER_BRIDGE_1_NAME
-			);
-			for ( String expectedDocumentIdentifierValue : typeDescriptor.values().documentIdentifierValues ) {
-				expectationSetter.add( expectedDocumentIdentifierValue, b -> { } );
+				backendMock.expectWorks( DefaultIdentifierBridgeExpectations.TYPE_WITH_IDENTIFIER_BRIDGE_1_NAME )
+						.add( documentIdentifierIterator.next(), b -> { } );
 			}
 		}
 		backendMock.verifyExpectationsMet();